Given the balanced equation representing a reaction:

Fe (s) + 2HCl (aq) → FeCl2 (aq) + H2 (g)

This reaction occurs more quickly when powdered iron is used instead of a single piece of iron of the same mass because the powdered iron

(1) acts as a better catalyst than the single piece of iron

(2) absorbs less energy than the single piece of iron

(3) has a greater surface area than the single piece of iron

(4) is more metallic than the single piece of iron

Question

Harry Anthony

Chemistry

14 September, 11:00

Given the balanced equation representing a reaction:

Fe (s) + 2HCl (aq) → FeCl2 (aq) + H2 (g)

This reaction occurs more quickly when powdered iron is used instead of a single piece of iron of the same mass because the powdered iron

(1) acts as a better catalyst than the single piece of iron

(2) absorbs less energy than the single piece of iron

(3) has a greater surface area than the single piece of iron

(4) is more metallic than the single piece of iron

+2

Answers (1)

Know the Answer?

Haleigh Chase · Answer 1

The answer is (3). The powdered iron and the piece iron is the same substance and is just different in the shape. So the reason is the power has larger surface area for reaction occurs.